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Local mould & damp experts in Porthmadog, Gwynedd

There are 31 Mould / Damp Control specialists in Porthmadog, and last month we helped homeowners get quotes for their home improvement jobs.

Browse Mould / Damp Control specialists in Porthmadog, Gwynedd

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Chameleon Refurbs have over 25 years experience in all types of Building Refurbishments so choose Chameleon Refurbs with confidence

Latest homeowner review

Reviewed by Isaac on 29/11/2025

J R Griffiths roofing we specialise at 're roofing, slate tiles and leadwork. also chimney work undertook. Rubber roof and also grp

Latest homeowner review

Reviewed by John on 7/8/2022

Reasonably priced, job completed the next day couldn't ask for anything more.

Here at four seasons home improvements we have multiple branches in northern England and Scotland with over 35 years experience in the building trade our trustworthy team are able to carry out all aspects of property maintenance; whether it be a small repair, large scale renovation, or even a new build project. Four seasons Home Improvements are a family run building company offering excellent service in a wide range of home improvement services. We specialise in all areas of home improvement so that our customers can receive a complete service. With more than 35 years of experience to call upon, our customers can be assured that they will receive expertise and reliability in whatever we do. QUALITY We care about what we do. Our customers can be satisfied that they are getting a quality build from qualified professionals. The way that our craftsmen approach their work means that our customers don’t have to make do with ‘good enough’ but receive excellence. HONESTY We offer clear quotations and sensible advice. We never try to sell our customers something that they might not need, but offer the benefit of our expertise in a way that is practical to you and easy to understand. Our customers return to us time and again because they trust us. NEATNESS We understand that after we finish our day you still have to live in your home. We try, always, to leave a site that is safe, clean and tidy at the end of our working day so that you can continue to enjoy your home. At Four Seasons Home Improvements, we understand that you want to improve your home and you need a reliable builder who will offer excellent service at a reasonable price. We offer all of these things in north of England and the south of Scotland Get in touch and we can talk about your needs and how we can help. All of our staff are helpful, friendly and knowledgeable. They will be delighted to talk, arrange a free site visit and quotation and guide you through the process of improving your home. Payment information We only accept card payment and cash We no longer accept bank transfer or cheque We accept all major bank and credit cards Mastercard and visa Our team always arrive with a card machine All our quoted prices are subject to vat being added upon completion

Latest homeowner review

Reviewed by Phil on 1/12/2025

Chris came to replace the leaking pitched flat roof of my garden office. I was kept informed at all times, and the team was polite, informative and cleared after finishing. A great job.

started business as parternership in 2007, we grown our portfolio from 2 houses to 86 units today, we also helped over 100 homeowners and 25 landlords including housing association, we help from a full consultancy package to build yur dreams to even help with leasing to our corporate contacts if you wish to invest. featured on HOMES UNDER THE HAMMER, we pride our selves in job well done, we always make sure we start projects within 2 to 3 weeks from time we agree and we always deliver our projects on time; we make the impossible a luxury and affordable possible while we take all the stress away; BGH combines technical expertise with exceptional customer service, ensuring every client benefits from cutting-edge technologies tailored to their home needs. with industry leading certifications and proven track record, BGH is a top choice for those seeking efficient, reliable and successful renovations We ate fully accredited Offer full guarantees and insurances including insurance backed guarantee and deposit guarantee We are specialist in new build, extensions, heavy refurbs, hmo and luxury conversions

Latest homeowner review

Reviewed by marvelous on 25/9/2025

Welcome to Property Renovation and Decorating Services: " PROFESSIONAL SERVICE " We are professionals builders with over 17 years experience on all building works: extension loft conversion refurbishment bathrooms kitchens painting and decorating plastering, wood flooring, carpet fitting, tiling. building works undertaken: General Building, New Builds, full Interior & Exterior, renovations and much more. Emy has been providing professional home renovation services for over 17 years. He is praised by the customers for his attention to detail, responsiveness, timeliness and quality work. Call (text) for a free consultation and estimate:

Latest homeowner review

Reviewed by David on 19/11/2025

Hi at jays property maintenance we run a family run business that are specialists in flat roofing new roofs Chimley rebuilds lead work and all aspects of property maintenance.with a 5 million public liability insurance.

Latest homeowner review

Reviewed by Mark on 18/8/2025

AA property and groundwork All aspects building work landscaping Building Roofing Pointing Flagging Sand blasting Small demolition Extensions Ponds Driveway specialist Resin driveways Handy man Garden clearances Jet washing Block paving Flagging Groundwork’s All work under taken

Latest homeowner review

Reviewed by Des on 7/10/2025

ASPRAY LIMITED

Mould / Damp Control in Porthmadog

Our award-winning claims management service aims to help policyholders throughout the UK make successful buildings insurance claims caused by storms, burst pipes, accidental damage, fire, floods or other events which lead to the property owners needing to make an insurance claim. We project manage and carry out the required repairs using our fully vetted contractors. Aspray always strive to reinstate the property to its pre-incident condition as swiftly as possible. Aspray Ltd are authorised and regulated by the Financial Conduct Authority for claims handling only.

Latest homeowner review

Reviewed by John on 14/5/2023

Home Build

Mould / Damp Control in Porthmadog

Welcome to home build thank you for visiting my rated people page . We are a family run business specialising in all roofing work including: Re-roofs Flat roofs Slate Tiling Roof moss removed Chimneys Ridge & Hip tiles Lead work and Valleys Upvc fascia, soffits and guttering - cleaned, repaired and renewed. EPDM Rubber roofs. We give free estimates and all work is guaranteed so don’t hesitate and give us a call

Latest homeowner review

Reviewed by Naz on 16/12/2025

Work was great at the time. Had some issues after wards but they never returned my calls to come rectify. Not good after care

Hello, I'm Gareth from Bangor, Gwynedd North Wales. I cover all areas including Wales and England. I have been working within the construction industry for over 10 years! I'm a hard working individual, with a strong hardworking team behind me organised by myself. All of my employees take pride in their work and are able to complete set tasks. I cover a variety of areas, This includes -Roofing -Groundworks -Earth works -General Building -Landscaping

Latest homeowner review

Reviewed by David on 28/12/2021

Excellent job polite efficient and would definitely recommend thanks for a great job

Hi I'm Charlie from boss roofing.boss roofing is a family run business and is a full service company meeting the roofing needs of commercial, industrial and multi-residential customers. We are proud to be able to offer services ranging from re-roofing to 24 hour emergency repair service. We are fully Insured.

Latest homeowner review

Reviewed by Marc on 29/1/2020

Very good job, extremely prompt and a good price.

A.Gallagher & Son

Mould / Damp Control in Porthmadog

A. Gallagher & Son provide services across North and Mid Wales and the North West. We employ only local specialist tradesmen for slating, tiling, flat roofing, lead work, fascia and gutters and solar PV. We are able to take on works of any size to the most complex designs and specifications. Our Roofing Services Include: New Roofs Roofing repairs Re roofing Slate and materials Solar panels Other general building Get FREE quotes and friendly service. Members of National Federation of Roofing Contractors Velux approved installers We believe high quality standards of work is an essential key in the companies growth and development.

Latest homeowner review

Reviewed by MALCOLM on 6/5/2025

Danny Fletcher

Mould / Damp Control in Porthmadog

(111) Read reviews

Operating in the Wirral, Merseyside for over 19 years we take great pride in the standard of work. All work undertaken is guaranteed for a minimum of 12 months. From a dripping tap to complete bathroom or en-suite.

Latest homeowner review

Reviewed by Liz on 13/12/2025

I can't rate Danny highly enough. Great worker who went over and above renovating my bathroom and always left everywhere tidy before leaving each day. I am so pleased with the job he has done

EMW

Mould / Damp Control in Porthmadog

We are a family run business with over 40 years experience in painting and decorating, including wallpapering Providing clients with a friendly professional service we decorate all premises, internal and external to the highest of standards.

Latest homeowner review

Reviewed by Catherine on 7/11/2025

At P.E.P Construction ltd, we offer a wide verity of service in the construction sector, from anything as small as you can think to as big as you want and as high end From groundwork’s to Extention all the way to new builds look no further, we have a team of trades all under one roof l, with a professional and friendly service start to finish look no further

Latest homeowner review

Reviewed by damian on 5/12/2024

Experts in refurbishment & replacement of traditional sash windows, hinged casement windows and doors At Sash Window Solutions, we believe that every sash window tells a story — and we’re here to preserve it with care, skill, and precision. As specialists in the restoration and replacement of timber windows & doors, we combine traditional craftsmanship with modern energy-saving innovations to bring timeless elegance back to your home. With decades of experience in traditional joinery and a deep respect for architectural heritage, our team is dedicated to delivering exceptional sash window refurbishment and replacement services. Whether we’re meticulously refurbishing original timber frames or handcrafting bespoke replacements, we treat every project with unrivalled attention to detail and care. Our goal is to retain the authentic charm of your property while improving performance, comfort, and longevity. What truly defines us is our dedication to exceptional customer service. From your first inquiry to the final detail, our team is committed to understanding your unique needs, respecting your home, and delivering a seamless, hassle-free experience. We pride ourselves on clear communication, honest advice, and going the extra mile — because we know that great service is just as important as great results. At the heart of every solution we offer is a focus on energy efficiency. Our services include discreet double glazing, advanced draught-proofing, and the use of sustainable materials — all designed to enhance thermal performance, reduce energy bills, and create a warmer, quieter home. Whether you’re restoring a single sash or upgrading an entire property, Sash Window Solutions delivers craftsmanship you can trust and results you’ll love.

Latest homeowner review

Reviewed by Sally on 15/9/2025

LUXURY COATINGS UK

Mould / Damp Control in Porthmadog

Hello and welcome to Luxury Coatings U.k. we specialise in painting&decorating,plastering,joinery and tiling. With over 25 years experience in the decorating trades, we will always provide a fast friendly and trustworthy service, we pride ourselves on providing the highest standards possible, with cleanliness a priority to all of our customers. Over the past 5years we have been fortunate and privelaged enough to be charged with carrying out and overseeing some very large and prestigeous projects on a number of British embassies qcross europe, including:- Lisbon,portugal. Paris, france. Riga,latvia.And gibraltar. I personaly carry a high standard of security clearence, provided by the office of nuclear regulations. working across the entire U.K. Please feel free to contact us with any questions you may have.

Latest homeowner review

Reviewed by Jeanette on 15/2/2024

Very professional. Turned up when he said he would. Very polite. Excellent value for money. Excellent job! Highly recommended!

Mountain Bathrooms

Mould / Damp Control in Porthmadog

Our main focus is on quality first, from a small painting job to a full property refurbishment or a new kitchen. I have been in the building and engineering trade for 30 years. We are fully insured and always clean and tidy.

Latest homeowner review

Reviewed by David on 29/10/2025

We are a landscape and home improvement company and cover north, west wales and the Midlands. We specialise in all hard and soft landscaping. We aim to carry out professional work with nptc qualifications for any arb work and over 20 years home improvement experience in the team.

Latest homeowner review

Reviewed by James on 3/5/2022

Excellent service. Shaun was very communicative, and made sure the job was done well. Definitely recommend.

Friendly business that covers all building work over North Wales, we take pride in our work and all work are done to a top standard

Latest homeowner review

Reviewed by Margaret on 31/10/2025

Iwan was brilliant and is coming back next week to do further work. He was punctual, professional, cheerful and friendly. I would definitely recommend him.

GMS

Mould / Damp Control in Porthmadog

Gareth, the proprietor of GMS is a qualified wood machinist by trade and has over 25 years’ experience working within the construction industry. Gareth first started the business in 2005 with a view to provide clients across North Wales and Cheshire with kitchens. In the last 10 years the business has diversified and now accommodates a scheme of works within construction from kitchens to bathrooms, gardens to bedrooms, fire and flood damaged properties and more. Gareth employs several staff and subcontracts to NICEIC registered Electricians and GAS SAFE registered gas engineers. Therefore, GMS can offer project managing and the client only needs to converse with one trade [GMS] rather than multiple. Thus, taking the stress out of the job.

Latest homeowner review

Reviewed by Mark on 23/2/2018

Great communication and work carried out to a high standard.

N E Construction

Mould / Damp Control in Porthmadog

Here at N e construction we do a range of work from big to small , building to landscape work , general maintenance , painting an a general tidy up,

Latest homeowner review

Reviewed by Gwion on 11/11/2021

Great guys

Go Pro

Mould / Damp Control in Porthmadog

Protect your most valuable asset and the contents inside; hire Gopro Roofing to provide you with first class roofing services for very affordable and competitive prices. At Gopro roofing we specialise in providing high quality roofing installations for residential, commercial and industrial clients throughout London and the Home Counties. Drawing on over 30 years of industry experience, we offer the complete roofing service, providing everything from flat roofing and single ply systems to green roofs, waterproofing systems and chimney refurbishment. We specialise in all aspects of roofing services, including: * Single ply systems * Pluvitec * Lead work * Topseal systems * Europolymers * Waterproofing * Velux windows * Flat roofs * Guttering * Cladding, fascias and soffits * Rooflights * Insulation * Carpentry * Pointing * Maintenance. * New roofs * Emergency repairs We have a reliable, honest and highly skilled team of roofers, which enables us to offer you one of the most professional and cost effective services, not only in London but throughout the South East. We offer the complete roofing service; from major re-roofing projects to minor domestic roof repairs that are not only competitively priced but also providing you with peace of mind.

Latest homeowner review

Reviewed by Marilyn on 20/4/2025

We cover all building and joinery work ,we do a good tidy job at a fair price

Latest homeowner review

Reviewed by Mandy on 12/11/2025

Great correspondence and quote

Celtic Heritage is an established company with over 30 years experience in the construction and double glazing industry. We benefit from a level of knowledge which enables us to give in depth, and valuable advice to our clients.

Latest homeowner review

Reviewed by Lee on 5/12/2017

Great company and a good team of Lads.

JG Roofing

Mould / Damp Control in Porthmadog

Would you all kinds of roof repairs gutter repairs cleaning gutters alter alter building over cause fully guaranteed

Latest homeowner review

Reviewed by Baiba on 27/8/2024

Rated People

Mould / Damp Control in Porthmadog

Loft conversion specialist, with 25 years worth of experience.

Sabre Assessing LTD

Mould / Damp Control in Porthmadog

Curve Management Services Ltd offers a service designed specifically to its customers requirements. Our services include leak detection, leak repairs, damp investigations, building envelope surveys and property drying. Our experienced technicians undertake all work. Our comprehensive building knowledge and unmatched experience in our field of expertise allows us to complete any job from start to finish. Our team of skilled technicians undertake work under the guidance of our experienced project managers. We can undertake private and insurance work via our in-house insurance claim specialist.

Sean Navin Bricklaying & Construction Serving North Wales, Cheshire & North West England At Sean Navin Bricklaying & Construction, we take pride in delivering top-quality building work with reliability, honesty, and care. With over 10 years of experience and NVQ Level 2/3 qualifications, Sean and the team offer a full range of general building and bricklaying services for both residential and commercial projects.

Jordan Davies

Mould / Damp Control in Porthmadog

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Recently completed jobs

Here's what's been happening in and around your area

build a wall

we would like to replace the glass door communicating sitting room and dining room with a solid wall so dining room can become a bedroom

New Extractor & wall removal

I have a bathroom downstairs and NOT on an external wall. I need to get one fitted ASAP by any means necessary. I also have an internal non load...

Reconfiguration / Renovation...

Unsure on budget to be honest, but have scheduled out the work, if interested. Quote labour only - either will supply materials, or have account at...

Room(s) to be in the...

Room(s) to be in the conversion: 1 x bathroom, 1 x bedroom Garage conversion to bedroom and bathroom I'm not sure if planning permission is...

New kitchen, bathroom, address...

New kitchen, bathroom, address damp, new radiators and piping, plastering etc

utility room and bifold door...

The utility room will be an extension of a single storey porch with a slate roof, it is 1.75m wide and will be 2.5 metres long, and include a velux...

New Extractor & wall removal

I have a bathroom downstairs and NOT on an external wall. I need to get an extractor fitted ASAP by any means necessary. I also have an internal non...

Reconfiguration / Renovation...

Reconfiguration / Renovation Services required: bathroom installation, flooring, plastering / plasterboarding, plumbing, tiling - floors, tiling -...

Size of extension: 2 rooms...

Size of extension: 2 rooms Height of extension: 1 floor Room(s) to be in the extension: bathroom, bedroom(s) Its in peysflog in porthmadog I'm...

repair an old barn for...

repair damaged walls and make sound

How our service works

  1. Create a job - it's free

    We'll connect you with the right tradespeople, from over 30 different trades.

  2. Get quotes

    Up to 3 tradespeople can provide a quote, but on average you'll get 1-2.

  3. Check ratings

    Look at each tradesperson's profile to see their ratings and reviews.

  4. Pick a tradesperson

    Use our homeowner checklist for extra tips on choosing a tradesperson.

  5. Job done

    Leave a rating for your tradesperson based on quality, reliablity and value.

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